What does it mean "making America great again"?

This seems to be said by just about every politician in just about every election, so it's basically meaningless. They will all say that whoever is in power at the moment is ruining America, and the only way of making it better is to vote for me. Well, of course they would, wouldn't they?

So I prefer to ignore it and concentrate on what all the candidates are saying they will actually DO.

They try to make you think they can clean up what ails the US. I don't think that's possible no matter who gets elected. At this point, it's how badly will we suffer with each of the candidates.

It means some Republicans hate this great country so much they don't think it is great.

It means "vote for me for no good reason"

it means Trump's message has considerably more syllables than Obama's did.....

Getting rid of muslims and Mexicans lol